Application Cases

Experiment Name: Study on Temperature Variation of PZT4 Piezoelectric Ceramics

Research Direction: Investigation of temperature rise in PZT4 piezoelectric ceramics under high electric fields

Test Objective: To explore the application of piezoelectric ceramics in high-power applications, investigate the impact of temperature variation on material properties under high-power conditions, and thereby identify suitable driving methods to mitigate the effects of temperature rise on device performance. This is crucial for the application of high-power piezoelectric ceramic devices.

Testing Equipment: Oscilloscope, signal generator, ATA-2041 high-voltage amplifier, computer (for data processing), temperature monitoring instrument (for tracking temperature changes).

Experimental Procedure:

1. Position the experimental instruments appropriately, connect them, and power on after verifying correct connections.

2. Place the PZT4 ceramic piezoelectric vibrator to be tested into the fixture.

3. Provide an excitation signal (sine wave) from the signal generator to the high-voltage amplifier. Adjust the amplification factor of the high-voltage amplifier to output a voltage with a specific amplitude to drive the piezoelectric vibrator.

4. Use the temperature monitoring instrument to record the temperature at this frequency and voltage amplitude.

5. Repeat the experiment with different voltage amplitudes and record the data.

6. Process the recorded data. After testing, organize the instruments.

   
   

Experimental Results:

Based on the measured temperature variation of the PZT4 piezoelectric ceramic vibrator, the data were compiled and plotted to generate temperature rise curves. The left figure shows the monitored current variation, while the right figure illustrates the temperature rise of the PZT4 piezoelectric vibrator. As the input power increased, the piezoelectric vibrator exhibited significant temperature rise.

Figure: ATA-2041 High-Voltage Amplifier Specifications and Parameters